472 HORSE, SWINE AND POULTRY DISEASES 



the infection. The enforcement of a complete quarantine is, however, 

 not practicable under average farm conditions, and the best that can 

 be hoped for is the lessening of the opportunity for infection by plac- 

 ing the herd on a part of the farm that will be the least accessible to 

 men or animals from other farms. Hog lots should never be located 

 near public roads if this can be avoided. All newly purchased stock 

 should be kept separate from the main herd for at least thirty days. 

 In addition to protecting the herd by methods of quarantine, 

 careful attention should be given to the general health of the herd. 

 The hogs should be provided with clean, dry sleeping places, and the 

 lots and feeding troughs should be kept clean. It is well occasionally 

 to scatter slaked lime about the lots and to wash and disinfect the 

 troughs. Probably the best disinfectant for this purpose is the com- 

 pound solution of cresol (U. S. P.), w r hich can be prepared at any 

 drug store. One part of this should be mixed with 30 parts of water 

 and the troughs scrubbed with it. The disinfectant is then washed 

 out of the troughs with water. 



After an outbreak of hog cholera the yards and pens should be 

 thoroughly cleaned, all dead hogs should be burned or buried deep, 

 with quicklime, the litter should be collected and burned, and lime 

 scattered freely over the ground. The sheds and hog houses should 

 be washed thoroughly with the solution of cresol as above described 

 before new stock is brought on the place. Feeding troughs that have 

 been used by sick pigs should be burned if made of wood, but if this 

 is not practicable they should be scrubbed clean and thoroughly 

 soaked with the cresol solution, the latter being washed out before the 

 troughs are used again. 



It is possible to start an outbreak of hog cholera in a herd by 

 bringing hogs on the farm that have had the disease and have ap- 

 parently recovered. We have no definite information concerning the 

 length of time that such hogs may be able to communicate the disease 

 to others, but for safety's sake two or three months should be allowed 

 to elapse after complete recovery before placing such an animal with 

 susceptible pigs, and then only after washing or dipping in a disin- 

 fectant solution (compound solution of cresol, 1 to 100) . 



In Farmers' Bulletin 24, Dr. D. E. Salmon gave the following 

 formula for a medicine used many years ago as a preventive and cure 

 for hog cholera, and sometimes called "Government Hog Remedy" : 



Pounds. 



Wood charcoal 1 



Sulphur 1 



Sodium chlorid 2 



Sodium bicarbonate 2 



Sodium hyposulphite 2 



Sodium sulphate 1 



Antimony sulphid (black antimony) 1 



Experience has shown, however, that this medicine is not to be 

 regarded as a cure or preventive in the true sense of the words, but it 

 is^nevertheless a very good condition powder. This powder is mixed 

 with the feed in the proportion of a large tablespoonful to each 200 



